The One Who Has Paid In Advance For Something Should Not Exchange It For Something Else

It was narrated from Abu Sa'eed that the Messenger of Allah ﷺ said:
"When you have paid in advance for something, do not exchange it for something else." (Da'if)Another chain with similar wording.

حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا شُجَاعُ بْنُ الْوَلِيدِ، حَدَّثَنَا زِيَادُ بْنُ خَيْثَمَةَ، عَنْ سَعْدٍ، عَنْ عَطِيَّةَ، عَنْ أَبِي سَعِيدٍ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ " إِذَا أَسْلَفْتَ فِي شَىْءٍ فَلاَ تَصْرِفْهُ إِلَى غَيْرِهِ " .